Home / 31,218.40-46,827.60-30,999.70

Finding the Fourth Proportional to 31,218.40, 46,827.60 and 30,999.70

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Solution

The fourth proportional to 31,218.40, 46,827.60 and 30,999.70 is: 46,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,218.40 : 46,827.60 = 30,999.70 : x
  2. Step 2: Convert to fraction form
    31,218.40/46,827.60 = 30,999.70/x
  3. Step 3: Cross multiply
    31,218.40x = 46,827.60 × 30,999.70
  4. Step 4: Simplify right side
    31,218.40x = 1,451,641,551.72
  5. Step 5: Solve for x
    x = 1,451,641,551.72/31,218.40
  6. Step 6: Final answer
    x = 46,499.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.